In Pakistan, more than 20 million people have been affected by flooding: that's more than the Boxing Day Tsunami, the Kashmir Earthquake and the Haiti crisis combined, and the recovery will go on for years.

All ABC Radio networks are joining forces this Friday for a national Pakistan Flood Appeal day.

"We are increasing our commitment with this appeal day on Friday 27 August by asking ABC Radio listeners to further support our regional community," says ABC Radio Director Kate Dundas.

"Listeners will be encouraged to donate to their preferred overseas aid agency or to UNICEF, the United Nations Children Fund, which is appealing for $45 million to cover cost of water, hygiene, emergency food and sanitation for more than one million children and their families."

On ABC Broken Hill this Friday, you'll hear stories from local Pakistani resident Imran Mansoor, as well as the latest from the flood-affected areas.